Central Vac

With the Intervac, remodelers can offer their clients an inexpensive alternative to a whole-house vacuum. The machine is installed in a central location and — instead of using wall piping — comes with a 30-foot hose. Measured suction is about the same as with a good upright. The Intervac filters out 99.9% of particles down to .3 micron, including fine dust, allergens, and pet dander. Two models are available: a flush-mount unit that’s recessed into the wall surface and hardwired; and a surface-mount model that plugs into a standard 100-volt outlet. Both cost around $250.